This Math quiz is called 'BIDMAS' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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Math isn’t as easy as reading a book – we can’t just do a calculation from left to right. Some operations have a higher priority than others, and so we need to know the correct order to do them in. BIDMAS doesn’t just apply to number problems, it crops up in algebra problems too, but you will be expected to know it without being told. It’s a good idea to write down each stage of working, showing what has changed and what’s stayed the same. This will help you keep the numbers in the correct place.